package tl;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @author fei
 * @date 2023/1/25 11:29
 * @description
 */
public class ThreadLocalDemo2 {

    public static void main(String[] args) {
        MyData myData = new MyData();

        ExecutorService threadPool = Executors.newFixedThreadPool(3);

        try{
            for (int i = 0; i < 10; i++) {
                threadPool.submit(() -> {
                    try {
                        Integer beforeInt = myData.threadLocalField.get();
                        myData.add();
                        Integer afterInt = myData.threadLocalField.get();
                        System.out.println(Thread.currentThread().getName() + "\t" + "beforeInt: " + beforeInt
                                        + "\t afterInt: " + afterInt);
                    } finally {
                        // myData.threadLocalField.remove();
                    }
                });
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            threadPool.shutdown();
        }

    }

}

class MyData{

    ThreadLocal<Integer> threadLocalField = ThreadLocal.withInitial(() -> 0);

    public void add(){
        threadLocalField.set(1 + threadLocalField.get());
    }

}
